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Decode BusFault address for k82

Question asked by Eugene Hiihtaja on Jun 21, 2018
Latest reply on Jun 25, 2018 by Jing Pan

Hello !


I have used sysmpu example for investigate how MPU detect acceses to protected area.

I can see BusFault handler code is detect exact address, access to what cause fault and from what slave it arrive.

But if access issued for peripheral area (0x40000000 - 0xFFFFFFFF), BusFault is occurs but code is show that no any slave errors at all.


How to detect exact fault address in case when wrong access is issued to peripheral area ?

MPU in K82 covers real memory and partially ( or all ?) peripheral area but ecat address are not decoded.


By the way could you recommend some guide/app note where explained how-to detect information from major ARM fault exeptions ?